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C.R. Laurence U.S. Aluminum’s Series 4500 Curtain Wall features pressure-relieved horizontals with a patented UNIflash™ System that sweeps infiltrated water to the exterior and eliminates the need to install vinyl flashing. Coupled with a pressure-bar-free design, the Series 4500 Curtain Wall can provide material savings of up to 15% to maximize value.

Exterior and interior members are internally joined with an injection-molded thermoplastic connector that provides total thermal isolation for superior thermal performance. The Series 4500 Curtain Wall delivers U-factors as low as 0.24 and has been tested for water infiltration to 20 PSF. Additional advantages include:

Material Savings of up to 15%

Faster Project Completion Times

Less Expensive than Conventional Pressure Bar Systems

The Series 4500 features either stick or panel type erection with no exposed joint fasteners. It’s available in captured glazed or two-sided structural silicone glazed configurations. This zone-dammed, pressure equalized system delivers exceptional performance and value.